| Meaning | Category |
| SNES Boot ROM | Computing->Hardware |
| Sabine Realty Trust | Business->NYSE Symbols |
| Saibai Island, Queensland, Australia | Regional->Airport Codes |
| Sam And Bailey Relationship | Miscellaneous->Funnies |
| Secondary Boundary Ring | Academic & Science->Chemistry |
| Sequencing Batch Reactor | Academic & Science->Chemistry |
| Sequential Batch Reactor | Academic & Science->Chemistry |
| Short Barrel Rifle | Governmental->Police |
| Similarity-Based Reasoning | Academic & Science->Mathematics |
| Sinai Bowen and Ruelle | Business->Firms |
| Small Box Reference | Business->Products |
| Small Business Resources | Business->General |
| Sneak, Bite, and Run | Internet->Chat |
| Source Browser Support file | Computing->File Extensions |
| Spectral Band Replication | Academic & Science->Physics |
| Spectral Bandwidth Replication | Governmental->NASA |
| Straight Before Radius | Academic & Science->Architecture |
| Strict bed rest | Medical->Physiology |
| Styrene Butadiene Rubber | Miscellaneous->Plastics |
| Swim, Bike, Run | Community->Sports |
| Synthetic Blend Rubber | Business->Products |
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